(19)

(11)

EP 1 535 159 A1

(12)

(43) Date of publication: 01.06.2005 Bulletin 2005/22 (21) Application number: 03785295.1 (22) Date of filing: 09.08.2003

(51) International Patent Classification (IPC)7: G06F 11/30, G06F 12/14, H04L 9/00, H04L 9/32 (86) International application number: PCT/US2003/025795 (87) International publication number: WO 2004/015576 (19.02.2004 Gazette 2004/08)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 09.08.2002 US 402287 P (71) Applicant: Visto Corporation Redwood Shores, CA 94065 (US)	(72) Inventors: MENDEZ, Daniel Menlo Park, CA 94025 (US) NG, Mason Mountain View, CA 94043 (US) (74) Representative: Maggs, Michael Norman et al Kilburn & Strode20 Red Lion Street London WC1R 4PJ London WC1R 4PJ (GB)